por International Conference on Water, Environment, Ecology, Socio-economics, and Health Engineering (1999 : Soul Taehakkyo) | Singh, V. P. (Vijay P.) [editor] | Seo, Won [editor] | Sonu, Jung H [editor].
por International Conference on Water, Environmental, Ecology, Socio-economics, and Health Engineering $d(1999 Seul, Corea) | Singh, V. P. (Vijay P.) [editor] | Seo, Won [editor] | Sonu, Jung H [editor].